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    <script>
    // 有一个包含工资的数组[1500,1200,2000,2100,1800],
    // 要求把数组中工资超过2000的删除，剩余放到新数组里
    var arr =[1500,1200,2000,2100,1800];
    var newArr=[];
    for(i=0;i<arr.length;i++){
        if(arr[i]<2000){
            newArr[newArr.length]=arr[i];
            // newArr.push(arr[i]);
        }
    }
    console.log(newArr);
</script>
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